System Design · Roblox · Medium
1. What is a shared todo list? A shared todo list is a collaborative checklist tool: one person creates the list, adds short tasks, and invites others to view or edit together. Think of a family grocery list, a team release checklist, or a weekend trip itinerary that lives on everyone’s device. Unlike a solo note-taking app, the interesting challenge is that multiple collaborators can modify the list simultaneously, and each must see the others’ updates quickly and…
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